Today, one of the important tasks that is set before environmental monitoring is to continuously obtain the necessary data on the state of the environment through the use of remote sensing techniques. It should be noted that remote sensing (hereinafter – RS) is used in the technogenic environment of mankind, which directly creates unfavorable conditions, increasing the statistics of the origin of various types of carcinogenic risks. The growing consumption of electric energy leads to the construction and commissioning of new energy facilities, as well as to the construction of high-voltage power lines in the residential environment. An important task in this direction is the establishment of sanitary protection zones, taking into account environmental restrictions, which is aimed at reducing social tension among the population located in the zone of active exposure to the electromagnetic field. Given that low-frequency energy objects, like other man-made objects, are characterized by dynamic characteristics and require constant monitoring of the course of changes in continuous processes, which directly affects the change in the intensity of the electromagnetic field. In turn, the modern information platform allows you to simultaneously conduct environmental surveys to identify carcinogenic risks in the selected area at a specific time by entering the necessary data, which are the main factors in setting the maximum permissible conditions. The development of digital maps based on Arc GIS application programs has a simulation characteristic and allows you to visually assess the dynamics of environmental changes with different variations.

Energy objects, installations of high and ultra-high voltage, are considered man-made, dangerous objects in terms of the intensity of the electric and magnetic field distribution, which create ion shells in high-altitude zones and spread a certain radius on the territory of a residential area. In this regard, during the construction and commissioning of low-frequency power facilities, it is necessary to conduct a specific environmental analysis on the selected territory. One of the main sanitary and epidemiological requirements for the construction and commissioning of high – voltage power lines is to take into account changes in the daily and seasonal distribution of electrical loads along high-voltage power lines, which have a continuous dynamic characteristic that increases the level of electric and magnetic field strength. In turn, the development of information support for environmental problems of the territory based on GIS technologies makes it possible to record information about the ecological state of the territory at a specific time and present this state with a set of thematic environmental maps of various territorial or district entities. It should be noted that the above characteristics increase the advantage of geoinformation technologies as an information platform of the database, which will make it possible to obtain data for processing operational analyses and conclusions about the state of the environment around high-voltage power lines.

Самовосстанавливающиеся предохранители (ЖСП) применяютсяв качестве ограничителей тока. Ограниченное применение ЖСП объясняется нестабильной защитной характеристикой, которую трудно согласовывать по селективности и перегрузоч­ным характеристикам с характеристика­ми других защитных устройств. При каждом цикле срабатывания ЖСП под действием электриче­ской дуги происходит эрозией сте­нок диэлектрического канала. Эрозия стенок приводит к изменению времени срабатывания ЖСП. В работе представлены научные подходы к повышению стабильности жидкометаллических самовосстанавливающихся предохранителей и определены задачи комплексного подхода к решению проблемы стабилизации преддугового интеграла и ин­теграла отключения. В результате исследования обнаружено, что довольно эффективным средством стабилизации преддугового интеграла и ин­теграла отключения является шунтирование ЖСП низкоомным резистором. На основе проведенного исследования предложено техническое решение позволяющееприменять ЖСП не только в качестве ограничителей тока для повышения отключающей способности электрических аппаратов, но и для защиты систем электроснабжения от перегрузок и к. з.

The growing energy demand of the city of Shymkent has led to the construction and introduction of new energy hubs, high-voltage power lines, which are being built and conducted around residential areas exposed to environmental and carcinogenic risks. In turn, when constructing new energy facilities, energy companies and designers should present a cartography of residential areas in the project, in addition to the features of the selected territories and the population, which becomes a multi-factor object and subject of research when taking into account environmental and sanitary-epidemiological requirements, as well as when choosing optimal solutions in terms of routing high-voltage power lines. In our case, the residential district of Nursat, Nazarbayev Avenue and Kazygurt were chosen as such objects, which are polluted residential areas from the point of view of the spread of electromagnetic radiation generated by high-voltage power lines with a voltage of 110 and 220 kV. The introduction of modern information technologies of a new generation made it possible to pinpoint and determine the main zones of electromagnetic radiation contamination, to establish the gradients of the electric and magnetic fields according to the degree of its impact, as well as to determine the number of residential objects that are partly exposed to carcinogenic and environmental risk by using the functional features of the geoinformation program.

In applications where it is crucial that a battery is recharged from the partially discharged state in the minimum time, it is crucial to honor the technological constraints related to maximum safe battery terminal voltage and maximum continuous charging current prescribed by the battery cell manufacturer. To this end, this contribution outlines the design and comprehensive simulation analysis of an adaptive battery charging system relying on battery open-circuit voltage estimation in real time. A pseudo-random binary sequence test signal and model reference adaptive system are used for the estimation of lithium titanate battery cell electrical circuit model parameters, with the design methodology based on the Lyapunov stability criterion. The proposed adaptive charger is assessed against the conventional constant-current/constant-voltage charging system. The effectiveness of the real-time parameter estimator, along with both the adaptive and traditional charging systems for the lithium titanate battery cell, is validated through simulations and experiments on a dedicated battery test bench.